Fire extinguisher



G. J. MEAD FIYRE EXTINGUISHER'L Filed June a. 1921 "Aug; 9, 1927." w1538,05)

Patented Aug. 9, 1927.

UNITED STATES GEORGE J. MEAD, 0F MILWAUKEE WISGONSIN, ASSIGNOR, BY MESNEASSIGNMENTS,

PATENT OFFICE.

TO THE FISK RUBBER COMPANY, OF CHICOPEE FALLS, MASSACHUSETTS, A COR-PORATION OF MASSACHUSETTS.

FIRE EXTINGUISHER.

Application filed June 6,

My invention relates to fire extinguishers and the principal object ofmyinvention is to provide a new and improved extinguisher system. In thedrawings accompanying the specification and forming a part thereof, 1have shown, for purposes of illustration, one form which my inventionmay assume. In the drawings Figure 1 is a sectional view of one unit ofan extinguisher system constructed according to my invention and Figure2 shows diagrammatically a plurality of units joined to form anextinguisher system.

The extinguisher herein shown consists of a container 11 having aconcave bottom 12' which is screw-threaded at 13 to receive a bushing141- the upper end of which is concaved at 15 to act as a seat for afloating ball 16 and the lower portion of which carries a fireextinguisher head '17 which may be of standard type except thatthe'usual bafile is preferably omitted. lVithin the container 11 is afire extinguisher agent 18 such as carbon tetrachloride while the entirecontainer 11 is so arranged thatthe agent 18 is subjected to pressuresuch as pressure 1 fluid which is shown as transmitted by a fluidpressure conduit 19. In such case the container 11 may be suspendeddirectly from the conduit 19 as shown and the fluid employed may be air.

In case of fire the link 21 of the extinguisher head 17 will collapseand thereby open the valve 22 in the extinguisher head 17 whereupon thefluid pressure acting upon the agent 18 will force the agent through anopening 23 down into the fire below. In-

name to the above 1921. Serial No. 475,336.

asmuch as my extinguisher is :particularly designed for use in placescontaining highly I inflammable material and derives part of itsadvantage from the use of better extinguishing agents than thoseordinarily per missible with the usual extinguisher systems I find itadvantageous to prevent the pressure fluid from discharging andaccordingly have provided the ball 16 which normally floats on the agent18 but is adapted when the agent becomes completely discharged to restin the seat 15 as shown by dotted lines at and to thus prevent theescape of the pressure fluid from the extinguisher.

The disclosure herein is illustrative only and my invention is of coursenot limited thereto.

I claim:

In a fire extinguisher system, a gas pressure conduit or pipe, aplurality of holders suspended from said pipe and in communicationtherewith, each of said holders adapted to contain a liquid chemical'for extinguishing fire and provided at its lowermost point with anoutlet having a sprinkler head closure therein, and a freely movableball Within the holder adapted to float on said liquid chemical, a seatat the bottom of the holder adapted to receive said ball when the liquidis exhausted and be held to its seat to close the outlet against theexit of gas from said conduit.

In testimonywhereof I have signed my specification.

GEORGE J MEAD.

